NSAID use was bigger than analgesic use. There were no differences in the numbers of patients in group 3 who were using between one and ten analgesics and those using NSAIDs. We emphasize that in all the groups, most of the patients were not using any drugs. Group 2 presented the largest number of patients (91.3%) who were not using drugs. Group 3 was bigger than the others (28.26%) in relation to using between one and ten analgesics and more than ten NSAIDs.